Is this wrapper under active development?
I tried using it recently to automate my client reporting by using your API and ran into a snag: HTTP requests fail because the Guzzle client does not trust the self-signed certificate being used by your API web server. This would easily be fixed if I could create my own Guzzle\Client instance and pass it into your wrapper, but it creates it's own at the time it's needed.
Would it be possible to add the ability to inject and use one's own Client instance?